They’re both captains and they’re both crucial to their fortunes. Argentinian hooker Creevy has overcome an injury concern this week to take his spot in the side. Moore has been one of the driving forces in the improved Wallabies scrum and is just as important in setting the tone of the team across the board. This will be the toughest test for the Wallabies scrum and Moore will play one of the most important roles in the game.

The ‘Pooper’ returns this weekend and this combination looms as the Wallabies’ most critical. Australia missed Pocock’s prolific ability to win turn overs against Scotland, a skill he does better than almost anyone in the world. Hooper and Pocock have proven to be a damaging combination when they have played together and it’s no coincidence that their one full game together was the Wallabies’ win over England. Lobbe is one of Los Puma’s most damaging players with his pace and agility and the two back rows will have an enthralling battle.

Juan Imhoff v Drew Mitchell

Imhoff’s try against Ireland sealed a semi-final spot and went viral for his “Superman” dive. Drew Mitchell’s double against Scotland puts him one try behind Jonah Lomu and Bryan Habana in the all-time World Cup try-scoring stakes. His form since being called up in the absence of Rob Horne has demanded selection and his finishing skills have been vital for Australia. Expect something spectacular from one of these guys on Sunday.

Bernard Foley v Nicolas Sanchez

Australia need only cast its mind back a week to be reminded of the importance of kicking. It will be another key decider in Sunday’s match. Sanchez is the man the Wallabies love to hate after his tete-a-tete with Michael Hooper in August and the fly half will be critical to his team’s chances. Foley has proven himself under the most intense pressure this tournament and that’s all the Wallabies can ask from him on Sunday.